General

  • Target
    psk.apk
  • Size 1.9MB
  • Sample220503-jsn1tsdaa7
  • SHA256 0dc975df4f929ed0422fb5c9a9582d3d5e11ab176cc3176e269b2a456d48d571
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • ermac

C2
  • http://193.106.191.118:3434

AES_key
AES_key

Targets

    • Target
      psk.apk
    • Size 1.9MB
    • SHA256 0dc975df4f929ed0422fb5c9a9582d3d5e11ab176cc3176e269b2a456d48d571
    • MD5 SHA1 SHA512
    • Ermac

      An Android banking trojan first seen in July 2021.

    • Ermac2 payload

    • Makes use of the framework's Accessibility service.

    • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps).

    • Acquires the wake lock.

    • Loads dropped Dex/Jar

      Runs executable file dropped to the device during analysis.

    • Queries the unique device ID (IMEI, MEID, IMSI).

    • Reads information about phone network operator.

    • Removes a system notification.

    • Uses Crypto APIs (Might try to encrypt user data).

MITRE ATT&CK Matrix

Tasks